Waco is located in Mclennan county Texas with a geographic area of 88.7 square miles. The total population in Waco is 137,779 with 48.4% male and 51.6% female. Children under age 5 represent 7.5% of the population, under age 18 equal 23.8% of the population and over age 65 is 12.5% of the population. The median household income is $40,349, per capita income is $23,126. There are a total of 50,108 housing units with 47.0% owner occupied. Education includes 22.5% of residents that are high school graduates and 27.7% with a bachelor's degree or higher. The average temperature in Waco in the summer is 83 degrees, and in the winter 49 degrees.